WASET
    Hong Li and  Shou-Ming Zhong and  Hou-Biao Li,  Stability Analysis of Fractional Order Systems with Time Delay.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    April 2014, vol. 88(4). 660 - 663
    [viewed 08 May 2024]. Available from: https://publications.waset.org/pdf/9998059.